chore(datacenters): drop the one-off Norway refresh script

The data refresh is committed and its provenance (extract, timestamp, MD5,
filter) stays in the dataset README. The script needed osmium-tool and could
only re-verify while Geofabrik still listed that extract, so it goes with its
test.

changelog.d/953-datacenters-norway-refresh.md

@@ -1,6 +1,4 @@
 - Refresh Norway's datacenters from a Geofabrik OpenStreetMap extract
   (2026-10-05). Troll Housing joins the layer (4,352 features) and four
-  Norwegian sites pick up current OSM tags; no site moved or was removed.
-  `scripts/build-datacenters-norway.py` reproduces or `--verify`s the merge,
-  touching only features inside Geofabrik's Norway boundary, and the dataset
-  README records the extract, checksum and filter (trygvehhh, #953).
+  Norwegian sites pick up current OSM tags; no site moved or was removed
+  (trygvehhh, #953).